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Oracle database 10g:Administration I Sample Questions:

1. Examine the following commands executed in your database:
SQL> ALTER SESSION RECYCLEBIN=ON;
Session altered
SQL> CREATE TABLE emp TABLESPACE tbsfd AS SELECT * FROM hr.employees;
Table created.
Further, you executed the following command to drop the table:
SQL> DROP TABLE emp;
Table dropped.
What happens in this scenario?

A) The table is moved to the SYSAUX tablespace.
B) The table is moved to the SYSTEM tablespace.
C) The table is renamed and remains in the TBSFD tablespace.
D) The table is removed from the database permanently.

2. On which three can you use Recovery Manager (RMAN) to perform incremental backup? (Choose three.)

A) password file
B) data files
C) whole database
D) parameter file
E) change tracking file
F) tablespaces
G) control files
H) archived log files
I) flashback log file

3. Which three statements are true regarding the logical structure of the Oracle database? (Choose three.)

A) Multiple tablespaces can share single data file.
B) Each segment contains one or more extents.
C) It is possible to have tablespaces of different block sizes in a database.
D) A data block is the smallest unit of I/O for data files.
E) Each data block in the database always corresponds to one OS block.

4. The UNDO_RETENTION parameter in your database is set to 1000 and undo retention is not guaranteed. Which statement regarding retention of undo data is correct?

A) Undo data becomes obsolete after 1,000 seconds.
B) Committed undo data would be retained for 1,000 seconds if free undo space is available.
C) Undo data gets refreshed after every 1,000 seconds.
D) Undo data will be stored permanently after 1,000 seconds.
E) Undo data will be retained in the UNDO tablespace for 1,000 seconds, then it gets moved to the TEMPORARY tablespace to provide read consistency.

5. User A executes the following command to update the TRANS table:
SQL> UPDATE B.trans SET tr_amt=tr_amt+500 WHERE c_code='C005';
Before user A issues a COMMIT or ROLLBACK command, user B executes the following
command on the TRANS table:
SQl> ALTER TABLE trans MODIFY (tr_type VARCHAR2(3));
What would happen in this scenario?

A) The transaction for user A is rolled back.
B) The ALTER TABLE command waits until user A ends the transaction.
C) The ALTER TABLE command fails due to the resource being busy.
D) The ALTER TABLE command modifies the column successfully.

Solutions: